Pianotech

I ran into a Yamaha "M" vertical 1980 today - silk loop job. One of the front legs is delaminating and the owner wants to take it on. Would be nice if he could get it off the piano. It didn't seem to want to unscrew, I removed the end-block and found this bold assembly in a cutaway, I'm wondering if, and how, this might be a locking mechanism for the leg. I don't see what else it might be doing there.
Anyone familiar with this?




------------------------------
Steven Rosenthal
Honolulu HI

------------------------------

I don't know for sure, but looking at this photo it looks like if you removed that nut(s) the leg would come off. I have seen similar arrangements for attaching legs to a console where the leg is one piece all the way to the top of the arm. Why not just loosen the nut and see what happens?
Paul McCloud
San Diego


Steven Rosenthal
I ran into a Yamaha "M" vertical 1980 today - silk loop job. One of the front legs is delaminating and the owner wants to take it on. Would be nice if he could get it off the piano. It didn't seem to want to unscrew, I removed the end-block and found this bold assembly in a cutaway, I'm wondering if, and how, this might be a locking mechanism for the leg. I don't see what else it might be doing there.
Anyone familiar with this?

cove behind end-block with nut and bolt assembly
Front corner w/leg, cove is in the red circle.

------------------------------
Steven Rosenthal
Honolulu HI




Original Message------

I ran into a Yamaha "M" vertical 1980 today - silk loop job. One of the front legs is delaminating and the owner wants to take it on. Would be nice if he could get it off the piano. It didn't seem to want to unscrew, I removed the end-block and found this bold assembly in a cutaway, I'm wondering if, and how, this might be a locking mechanism for the leg. I don't see what else it might be doing there.
Anyone familiar with this?




------------------------------
Steven Rosenthal
Honolulu HI

------------------------------

Steve

This model was a copy of the old Everett pianos. I believe the leg is glued and doweled to the side of the piano. Technically it can be removed, but you would have to chisel the glue joint, and even then it will be difficult to take off because of the dowels. 

The dowel you showed is used as a guide to attach the keybed to the side of the piano. I don't think it has anything to do with the leg. I'm not sure if the bolt and nut in the picture has anything to do with the leg. I can't quite make out where that is.

------------------------------
Willem "Wim" Blees, RPT
Mililani, HI 96789
------------------------------

Original Message:
Sent: 05-11-2018 01:42
From: Steven Rosenthal
Subject: A little help?

I ran into a Yamaha "M" vertical 1980 today - silk loop job. One of the front legs is delaminating and the owner wants to take it on. Would be nice if he could get it off the piano. It didn't seem to want to unscrew, I removed the end-block and found this bold assembly in a cutaway, I'm wondering if, and how, this might be a locking mechanism for the leg. I don't see what else it might be doing there.
Anyone familiar with this?




------------------------------
Steven Rosenthal
Honolulu HI

------------------------------